Process of producing finishes imitative of stone



May 28, 1935. H. COHEN 2,002,848

PROCESS OF PRODUCING FINISHES IMITATIVE OF STONE Filed July 11, 1934 Patented May 28, 1935 N mural)A srATl-:s

PATENT oFF-ICE PROCESS or rnopUcmG FrNIsHEs nurrn'rlvn oF s'rorzt:

Harry Cohen, Galion, Ohio, assignor to The' Perfection Steel Body Company, Galion, Ohio, a

. corporation Application July 11, 1931, Serial No. 734,615

4 Claims.

5 ilnish'of this sort inimitation of marble.

It is knewn that becauseof the peculiar strata formation of marble such stone is perhaps the most diillcult to imitate in natural formation and natural colors.

in the production -of an imitation marble finish lies in the diiliculty of duplicating certain irregular streak-like formations that occur in the original or natural marble. These'streak-like formations, as well as certain scattered. spotty .fformations are generally comparatively lightas occurring in different`colored marbles running from the lighter to even they most dark colors. e

A primary ,object of this invention, "therefore, has been to devise a process which will be conducive to obtainingvmore natural-like imitation effects or marble finishes than heretofore secured by any processes of which I have knowledge.

In the carrying out f my finishing process, I

avail of suitable applicator means for the paint, lacquer, or other' coloring matter employed, Preferably some suitable sort of spraying device. Such a device is excellent for varying the depth of the color applied tothe base operated upon and even for producing high light effects, but even by the use of an applicator instrumentality of this type, or brushes,A` I have found it almost impossible .ordinarily to imitate the light streaky or spotty formations that occur in natural marble as commercially produced today. `I have discovered however, that these particular effects which I refer to maybe obtained inV considerable degree of closeness of the simulation of the natural stone be applied tothe base in such a manner ythat; by\ reason of Vthe applied moisture the pigment orcoloring matter will not adhere to those portions of the base moistened inthe manner stated.

Now in the carrying out of my invention,` if the base being finished for obtaining av marbleized effect is relatively light in color, either naturally or by reason of the application of a light coat of lacquer or the like, it will be evident that by moistening certain portions of this base, and then applying other imitation coats of coloring matter at the portions moistened,the said base will receive- One of the problems, for instance,-

(Cl. 91568) e A I vdrying ofthe lbase processed for ni'shing by the processof fthe invention, the parts ofthe 'article being `produced with the marbleized effect, which are moistened at the time of the application ofthe paint or'lacquer, etc., will remain ofthe same color as originally possessed thereby. It-is this 'action of the moisture in conjunction with the Apaint which is availed of for the purposes of my invention, though it is contemplated in my process that I shall subject the moisture,l as for instance a drop or drops of water deposited onthe base,l to a scattering action in order 'to obtain Athe desiredimitative results, as will be more fully presented hereinafter.

The figure of the drawingis illustrative of a piece of material 'which may be any suitable article of. manufacture, the surface of which Ais finished in a manner to resemble the surface of a slab or section of marble, employing the process of my present invention.y

Describing specifically the process which I have devised for the purposes of my invention, as above outlined briefly, and referring to the illustration of the drawing', itis contemplated that the base or articleto which my finish may be applied shall be supplied with a base coating `,of paint; lacquer, or coloring matter.In^ the present instance, this coatingfshowingat I., in various portions of the drawing. is of light color. Other finishing coatings in imitation of marbleized effects will be applied to the said jbase coat of paint] for the purpose of producing. the shadow-like formation 2 that occurs in marble slabs and for providing other' shaded effects such as may be designated at 3. It is impossible in a black and white drawing, of course, A to depict the'actual marble formation so that this is not particularly attempted by the illustrationof the accompanying drawing, theprimary object being to illustrate the manner in which the streak-like formations I appearing in the drawing are formed.

nAfter the base coat of lightcoloring matter has been applied to the bas'e or article"which -is beingtreated by the finish of my invention, and has dried, I`cause to be deposited upon the base or surface being finished, on the said base coat I, .a drop or, drops of water. Other liquids may possibly be used for the purposes of my invention, but water provides a very satiisfactory liquid for the purpose.

Thereupon, the .drop or drops ofswater will be subjected tothe action of pressure preferably in the form of an air spray directed against the water causing the same to be scattered over the surface being treated to provide spot formations ia of different sizes and irregular shapes and continuous streak-like or line formations designated Ib in the drawing. These spot-like or streak-like or line formations representmoistened portions of the base coating t, .previously referred to, and their appearance in simulation of marbleized eiiects does not become apparent until a subsequent coat or coats of paint or coloring matter is superposed upon the base or article being iinished by being applied whilst the moistened portions ic and ib are still moist.

My invention avails of the known fact that when a base or other article is provided with moisture or water thereon, themoistened portions will not provide an adherent surface for painter lacquer or light coloring matter, if the latter shall be applied to the base, while said portions are in their moistened condition. It has been found in practise/oddly as it may seem, thatfthe subjecting of a drop or drops of water to the action of a pressure force like sprayed airl will cause such a scattering or movementV of the water on the surface'as to create very close simulation of light strata formations for imitation marble effects.

It will be understood that after the base is vmoistened in-the manner described above, and a subsequent coat or coats of paint, lacquer, or the like, applied, While the portions ia and ib are in moistened condition, the subsequent coats of coloring matter will adhere to the base at all portions except where the latter is moistened and the base may be dried in the air or subjected to heat in order to be dried after the coats of coloring matter superposed upon the moistened base are applied, drying,

of course, being to eliminate the moisture. Generally speaking, in the spraying operation, the sprayed paint or lacquer will adhere and immediately dry on all portions of the surface except those that are moistened in the manner set forth. It is not necessary under certain applications of the process of the invention, Where certain imitative effects are to be produced, that any base coat of paint whatsoever be applied to the base or article of manufacture being treated. Sometimes the natural color of the base,` either metal, composition, or the like, may be quite suitable to afford the color of a certain object to be imitated under which conditions the'drop or drops or water which I use, and which` are subjected to pressure of being .shattered into spot formations and streak-like or line formations, may be applied directly to the substance from which the basey or article of manufacture may be made, and when subjected to the scattering eii'ect described, will accomplish the desired result of preventing a subsequent coat or coats of paint, or coloring matter, from adhering to the moistened portions.

If necessary, at the conclusion of the process of the invention, drying of the moistened spots, streaks, or lines, formed by the Water drops subjected to pressure, may be accomplished by wiping the article of manufacture. I do not Wish, therefore, to be limited to any particular method of drying, as any one method is not material to the invention. j

A. convenient way in which to cause 'the drop or drops of Water, or liquid, used to meisten the base or article in the manner specified to spread aooaeae with streak-iike or continuous line eects, is to direct the pressure means such as the air spray toward the liquid in a plane approximately parallel with the plane of the surface being treated.

Any suitable apparatus may be employed to deposit the water, or liquid, used for the moistening purposes described, upon the surface being treated, and under certain conditions, if this water is permitted to drip from a point at some dista-nce from the surface of the article of manufacturepthe splashing or" the water may be availed of to provide drop-like eects in addition to the application of air pressure for scattering the moisture along with the streak-like action or continuous linefeiects.

Having'thus described my invention, what E claim as new and desire to secure by tters Patent of the United States,.is:-

l, The process of producing imitative effects in the iinishing of articles of manufacture which consists in applying to a base to be treated with an imitative nish a small quantity of a masking liquid, subjecting said liquid as applied supercially to the base to pressure to cause the saine to be moved to diierent portions of the base to be masked, and whilst the said different portions are subject to the moisture of the liquid applying to the base a coat or coats of coloring matter which does not adhere to the masking liquid.

2. The process of nishing a base or article of manufacture in imitation of stone such as marble, which consists in applying to the base a drop or drops of Water for masking parts of the base, subjecting said water to pressure to scatter the same to provide moistened, spots or streak-like portions on the surface of the base to be masked, and then applying to the base while said spots and portions are moist a superposed coating of coloring matter which does not adhere to the masking liquid.

3. The process of treating articles of manufacture to provide finishing effects in imitation of marble, or the like, the same consisting of 4ap: 1

iii

piying to the Abase a preliminary coat of color-l45 ing matter, depositing upon said coat of coloring matter a small quantity of a masking liquid, subjecting said liquid to the action of an air spray to scatter the liquid to different spots or portions of the colored surface to be masked, and while said spots or portions are moistened applying to the said surface-a" subsequent coating of coloring matter which does not adhere to the masking liquid and is prevented from adhering to the surface by the moisture on said spots or portions.

4.-. The process of treating articles of manufacture to provide nishing effects in imitation of marble, or the like, the same consisting of applying to the base a preliminary coatv of coloring matter, depositing upon said coat of coloring matter a smali quantity of a masking liquid, subjecting said liquid to the action of an air spray directed to the drop or drops of liquid in a plan` approximately parallel with the plane of the surface being treated, to scatter the liquid to ditferent spots or portions of the colored surface to be masked, and while said spots or portions are moistened applying to the said surface a subsequent coating of coloring matter which does not adhere to the masking liquid and is preture on said spots or portions.

HARRY COHEN. 

